Peanut allergy mystery: why do some kids outgrow it?
NCT ID NCT02497261
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study follows 200 children who have tested positive for peanut allergy but avoid eating peanuts. Researchers will use a gold-standard food challenge to see which children are truly allergic and which have outgrown their allergy by age 5. The goal is to understand if avoiding peanuts makes allergies more likely to persist. No treatment is given, and the challenge does not change a child's ability to tolerate peanuts.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- What this could lead to
- If successful, this study could help identify which children with positive peanut allergy tests are truly allergic and which have outgrown it, guiding safer dietary decisions.
- What could go wrong
- This is an observational study, not a treatment trial. It will not change a child's ability to tolerate peanut, and results may not apply to all children.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
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